Removes a node specified by name. When this map contains the attributes
attached to an element, if the removed attribute is known to have a default
value, an attribute immediately appears containing the default value as
well as the corresponding namespace URI, local name, and prefix when applicable.
Removes a node specified by name. When this map contains the attributes attached to an element, if the removed attribute is known to have a default value, an attribute immediately appears containing the default value as well as the corresponding namespace URI, local name, and prefix when applicable.